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Magnoliopsida
Dahlia pinnata
EOL Text
Rounded Global Status Rank: GNR - Not Yet Ranked
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Rights holder/Author | NatureServe |
Source | http://explorer.natureserve.org/servlet/NatureServe?searchName=Dahlia+pinnata |
United States
Origin: Exotic
Regularity: Regularly occurring
Currently: Unknown/Undetermined
Confidence: Confident
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | NatureServe |
Source | http://explorer.natureserve.org/servlet/NatureServe?searchName=Dahlia+pinnata |
Dahlia pinnata (D. x pinnata) is a species in the genus Dahlia, family Asteraceae, with the common name Garden Dahlia. It is the type species of the genus and is widely cultivated.
Contents
Description[edit]
Dahlia pinnata is a perennial herbaceous plant with a rhizome and tuberous roots, reaching a height of 70 to 120, rarely 160 centimeters. The stem is erect being branched only in the inflorescence. The leaves are usually simple, with leaflets that are ovate and 5–10 cm long.
The two to eight flower heads have a diameter of 6 to 10 centimeters on 5 to 15 centimeters long stems. The eight florets have a length of 3 to 5 centimeters, are ovate and coloured pink to deep purple.
Taxonomy[edit]
Hansen and Hjerting in (1996)[2] demonstrated that Dahlia pinnata should more properly be designated D. x pinnata. D. x pinnata was shown to actually be a variant of D. sorensenii that had acquired hybrid qualities before it was introduced to Europe in the sixteenth century and formally named by Cavanilles.[3] The original wild D. pinnata is presumed extinct.
Distribution and habitat[edit]
Ecology[edit]
The flowering period extends from July to October.
Cultivation[edit]
Used as an ornamental plant, and was cultivated by the Aztecs before the discovery of America, and was introduced to Spain in 1798. Modern dahlias are often the product of hybridisation between D. pinnata and D. coccinea.
References[edit]
- ^ Icon 1: 57 (t. 80).
- ^ Hansen, H. V. and J. P. Hierting. 1996. Observations on chromosome numbers and biosystematics in Dahlia (Asteraceae,Heliantheae) with an account on the identity of D. pinnata, D.rosea and D. coccinea. Nordic Journal of Botany 16: 445-455.
- ^ Cavanilles, A. J. 1791. Icones et Descriptiones Plantarum 1: 57.
Sources[edit]
- Eckehardt J. Jäger, Friedrich Ebel, Peter Hanelt, Gerd K. Müller (eds.): Rothmaler Exkursionsflora von Deutschland. Band 5: Krautige Zier- und Nutzpflanzen. Spektrum Akademischer Verlag, Berlin Heidelberg 2008, ISBN 978-3-8274-0918-8.
License | http://creativecommons.org/licenses/by-sa/3.0/ |
Rights holder/Author | Wikipedia |
Source | http://en.wikipedia.org/w/index.php?title=Dahlia_pinnata&oldid=621049174 |
Chile Central
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | Pablo Gutierrez, IABIN |
Source | No source database. |
Chile Central
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | Pablo Gutierrez, IABIN |
Source | No source database. |
Chile Central
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | Pablo Gutierrez, IABIN |
Source | No source database. |
A cultivated plant, native of Mexico.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=110&taxon_id=200023813 |
Arbustiva
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | CPQBA/UNICAMP, IABIN |
Source | No source database. |
2600 m
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=110&taxon_id=200023813 |
In Great Britain and/or Ireland:
Foodplant / parasite
Golovinomyces cichoracearum parasitises live Dahlia pinnata
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | BioImages, BioImages - the Virtual Fieldguide (UK) |
Source | http://www.bioimages.org.uk/html/Dahlia_pinnata.htm |